Added PowerPoint templates to the Slide Assistant (#1055)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Assistants/SlideBuilder/PresentationOccasion.cs

@@ -0,0 +1,30 @@
+namespace AIStudio.Assistants.SlideBuilder;
+
+/// <summary>
+/// The occasion of a presentation, which shapes how the LLM structures it.
+/// </summary>
+/// <remarks>
+/// The list covers the common occasions only; OTHER takes any other one as text.
+/// </remarks>
+public enum PresentationOccasion
+{
+    UNSPECIFIED = 0,
+
+    TALK,
+    KEYNOTE,
+    CONFERENCE_TALK,
+    LECTURE,
+    TRAINING,
+    WORKSHOP,
+    MULTI_DAY_WORKSHOP,
+    THESIS_DEFENSE,
+    RESEARCH_RESULTS,
+    PROJECT_REPORT,
+    MANAGEMENT_REPORT,
+    PITCH,
+    PRODUCT_PRESENTATION,
+    KICK_OFF,
+    TEAM_MEETING,
+
+    OTHER,
+}